Improvement in turbine-wheels



UNITED STATES PATENT OEEIGE DAVID B. FLIN T, OF ORANGE, MASSACHUSETTS, ASSIQNOR TO THE EODNEY HUNT MACHINE COMPANY, OF SAME PLACE.

`nuPRovEwltNT 1N mesme-WHEELS.

Specification forming part of Letters Patent No. 138,239, dated April 29, 1873 ;V application led March 6, 1873.

To all whom it may concern: Be it known that I, DAVID B. FLINT, of Orange, of the county of Franklin and State ot Massachusetts, have invented a new and useful Improvement in Turbines; and do hereby declare the same to be fully 4described in the following specification and represented in the accompanying drawing, of which- Figure l denotes a front elevation, Fig. 2, a bottom view 5 and Fig. 3, a transverse secA tion of a horizontal Water-wheel or turbine provided with my invention, which has reference to the vertical adjustmentof the step of the wheelshaft.

The drawing, shows a double-acting turbine with my improvement.

In such drawing, the wheel proper is exhibited at A, provided, as usual, with a vertical shaft, B, whose foot is pivoted in a step, c. This step is supported by a spider or cross, C, having four or other suitable number of arms, b, arranged at right or proper angles to each other. They project beyond the drafttube D of the wheel-case, and have fixed to them 'a short tube or centralizing ring, E. This latter ts so as to be able to slide within the draft-tube. Instead of being arranged within the draft-tube the centralizin g tube may encompass it so as to slide up or down upon the outside of it, the object ofthe tube or ring E being to maintain thespider duly centralized with respect to the draft-tube. From each of the arms of the spider one of a series of screw-boltsor rods, F F, is extended upward to and through the guide G; there being, on the top of the guide, and to each screw-bolt or rod, a nut, H, which is screwed upon the said bolt or rod. By turning the said nuts on their screws the spider and its step may be adjusted, or raised, or lowered vertically, as occasion may require, from time to time, particularly as the step and pivot may become worn. As the door of the lfiume is usually on, or about on, a level with the bottom ofthe guide, it will be seen that the guide.

and all of the wheel and case above it will be Witnesses:

It. LivEnMonE, HIRAM WooDwARD. 

